Product Type: Cross-Series Variable Thread Crossover Sleeve
Thread Config: Female T45 Thread to Female T38 Thread
Structural Design: High-Stiffness Heavy-Wall Variable Body
Core Function: Adapts Larger T45 Power Inputs down to T38 Tool Strings
Primary Application: Long-Hole Production, Bench Drilling & Downscaling
Material Grade: Premium Fatigue-Resistant Structural Hollow Alloy Steel
EMERGENCY RIG CONFIGURATION:
Cross-Series Problem Solver: Solves critical jobsite compatibility issues when your heavy crawler rig is equipped with a T45 shank/rod setup, but the immediate drilling plan requires standard T38 drifting strings or smaller diameter bits.
Heavy-Wall Engineering: To withstand the punishing down-shock of T45 drifters, Bloom has optimized the wall thickness to eliminate joint deformation.


When rig configurations don't match onsite tool availability, downtime eats your profit. Bloom's T45 to T38 crossover coupling sleeve is a high-performance variable adapter designed to quickly step down from high-power T45 drifting setups to standard T38 tool strings, keeping your production active and highly flexible.
Because crossing thread profiles involves managing different torque dynamics, this heavy-wall crossover sleeve is machined with strict coaxial tolerances from premium alloy steel. The full gas carburization treatment hardens both the T45 and T38 internal thread sections to equivalent structural tolerances, effectively absorbing the high impact forces of larger drifters while protecting the smaller T38 thread pins from shearing or overheating.
Don't let mismatched thread inventories slow your project down. Contact Bloom's technical sales today to discuss your cross-series adapter requirements and obtain a fast custom quotation.
Contact: Kevin Dai
Phone: 13605749661
E-mail: sales@bloommachinery.com
Whatsapp:+86 13605749661
Add: Hehua Bridge, Yunlong Town, Yinzhou Distric, Ningbo City, ZheJiang Province